Diffusion-weighted magnetic resonance imaging data obtained early in the course of therapy can be used to estimate tumor proliferation rates, and the estimated rates can be used to predict tumor cellularity at the conclusion of therapy. Six patients underwent diffusion-weighted magnetic resonance imaging immediately before, after one cycle, and after all cycles of neoadjuvant chemotherapy. Appa...

many other biomedical journals dealing with cancer research, often publishes papers whose principal aim it is to test the association between quantative measurements of biological variables. When these are expressed on continuous scales, the statistics most frequently adopted to test their association are the Bravais-Pearson (parametric) and the Spearman (non-parametric) correlation coefficient...

We construct a Pearson correlation-based network and a partial correlationbased network, i.e., two minimum spanning trees (MST-Pearson and MST-Partial), to analyze the correlation structure and evolution of world stock markets. We propose a new method for constructing the MST-Partial. We use daily price indices of 57 stock markets from 2005 to 2014 and find (i) that the distributions of the Pea...

Customer orientation is one of the new approaches which is recently considered by the Iranian Healthcare Centers. The present study aims to identify the main factors of customer orientation in Iranian hospitals. The study is done through analysis of a questionnaire designed after recognition of the main variables. Iranian Social Security Organization Hospitals (the major governmental health ins...

The use of Pearson’s correlation coefficient in Author Cocitation Analysis was compared with Salton’s cosine measure in a number of recent contributions. Unlike the Pearson correlation, the cosine is insensitive to the number of zeros. However, one has the option of applying a logarithmic transformation in correlation analysis. Information calculus is based on both the logarithmic transformatio...

introduction. one of the proplems that both medical students and educational programmers are involved in is the importance of basic science materials in comprehention of clinical subjects and student's performance after that. our goal is to measure the correlation coefficient between the cbse and cpse and the predictive validity of cbse for cpie. methods. analytic cross-sectional study was...